Fireplace-damper.



`13eitknownthat LDanmn B, LIvEsEY, a

citizen?f=ofif,theU11ited 'States, residing at S'eattle,r itn{fthefcounty of. King, 'State 'of :W shin y'ton have invented vcertain new anduseful=--1mprovenentsinFireplaceiDampers and Iidoherebydeclaretliefollowing' to'be a' fullailear; and exact'des'cription'of the in#vention, :such as'fwi-llinable others skilled in theartitoiwhichit'appertains to makeand This invention relates to fireplacevdam'- pers, andhasfor one ofits obj ects to simplify and 'improve theconstruction and provide a .deviceof-this '.characterwhic'h may bereadscribed and then specifically pointed out in kof the tion, Figure 11s a vertical section of a tirethe claims, and in the drawingsillustrative referred embodiment of the invenplace including a portionof the flue with the improved damper structure applied. Fig.

2 is a section'on the line 2 2 of F ig. 1.

F ig. 3 is a `section enlarged, on the line 3' 3 of Fig. 1-. Fig. 4 is aperspective viewof the damper, illustrating a` modification in theconstruction. F ig. 5 is a perspective view illustrating anothermodification in the construction.

The improved device is adapted to be located at the throat portion of ,afireplace, the rear wall of the iireplace being indicated at 10 and thefront wall or breast at 11, the latter depending below the upper end ofthe rear wall and producing the contracted throat 12, of the usualform.l

Arranged at the outlet of the thr0at 12 are spaced horizontal bars12S-44, the bars embedded in the inner face of the breast .portion 11 ofthe chimney, as shown at 15, while the opposite ends of the bars restupon the chimney structure rearwardly of the throat, as Shown'. The bars13-14 provide supports for the damper which consists of a sheet metalplate 15 having an upturned forward edge'l, the plate being ofsuiiicient width to entirely close the throat 12 when located in 'oneposition, and to en tirely uncover the throat when located in anotherposition.

Inserted in the breast portion '11 of thel -DauiELa-Bgrivnsn'v, Iorstarrte;wasrritratta,in.'iv

' Achimney structure is a sleeve 17 through which a rod 18 isfslidablyarranged, the rod having an operating*knobl 19 at its outer en d'and-with the inner end threaded, as shown at 20. The rod 18 passes throughany aperture in the upturned portion 16V of fthe damper plate y15, andis thus both 'rotative and slidable through the sleeve 17 and theupturned portion 16, as shown.

The plate 15' is provided with a slot 2l and `fitting upwardly throughthis slot is atriangular member 22, the member 22 being provided with a.threaded aperture. The slot V21 will be of sufficient size tov permitthe member 22 to project a sufficient distance above the plate 15 toreceive the threaded portion 20 of the rod 1.8, the rod th'us serving toprevent the member 22 from passing downwardly through the slot, whilethe projecting ends of the member prevent it from moving upwardlythrough the plate. By this means when the rod is connected to the member.22 and the latter located in the slot 21, it will be obvious that themember 22 will be held from movement in all directions,"A

while at the sumetime the rod may be readj ily rotated to adjust theplate 15--16 nearer to or farther from the inner face of the chimneystructure or from the sleeve 17.

By this means the plate 15 .may be adjustedrelative to the rod andsleeve, to adapt it. to the throat 12. The throat opening may thus beread-ily controlled to any required extent,

and thus control the draft from the grate, as will be obvious.

The sleeve 17 will be embedded in'the Y' brick work of the breast 11,and may be provided with a lateral flangel 24 to assist in holding thesleeve, and to form a finish ,to the outer end of the sleeve.

The upturned portiolrl of the plate 15 is an important 'feature of theinvention and performs two important functions; first, as a means forassisting in supporting the rod 18, and seco'nd, to constitute a portionof the' throat 12 and to confine the produ'cts of the' combustion, andthereby increase the eiiiciency of the draft A damper thus constructedforms a novel and effective means for controllingthe air currentspassing upwardly from the grate, and is capable-of beingreadily'adjusted to suit the varying conditions ofthe weather, vand alsoperforms the usual function of regulating the amount of draft for theproper combustion of the fuel in the grate.

. In Fig. 4 is shown a slight modification in the manner of constructingthe nut attachment to the platel to receive the threaded portion of therod 1S, consisting in'a plate Y 25 having a threaded aperture andriveted or otherwise secured tothe plate 15. p

In Flg. 5 1s shown another modification in the construction consistingin a projection 26 extending from the plate `15 and provided with atransverse threaded aperture to receive the threaded portion of the rod18, but

4 it is obvious lthat these slight -modifications A would not'constitutea departure from the principle of the inventi on or sacrifice any of itsadvantages.l

i' .What is claimed, is

l'. In a replace damper structure, spaced .bars adapted to be supportedabove the throat of a fireplace, a vplate slidable upon said bars andwith its forward edge upturned and provided. with a transverse aperture,said platehaving a longitudinal slot,

-a nut member'having` a threaded aperture and olf-greater length thanthe slot and located therein with itsnvidcr portion' below the plate andits threaded aperture above the plate, and a rod slidable through tneaperture in the upturned portion of the plate and adapted to be slidablyarranged through a chimney breast and with a-threaded -portion engagingthe threaded aperture of the nut member.- f

2. In a replacejdamper structure, spaced bars adepted to be 4supportedabove the throat o a-ireplace,.aplate slidable upon said bars and Withits forward edge upturned and provided with a transverse aper- ,throughwhich the rod slidably operates.

In testimony whereof, I aiiX my signature,

in presence of two Witnesses.

.DANIEL B. LIVES-EY.

Witnesses:v p

D. G..OBRIEN, IV. A. ROGERS.

